In terms of performance polyurethane caulk is just plain better than acrylic caulk.
Best exterior caulk for cement siding.
Butyl rubber is sometimes recommended for exterior siding since it s a specialty outdoor caulk that can withstand changes in temperature and repeated exposure to the elements but you can choose any exterior caulk that will bond to your siding just make sure to read the labels and spot check on an unseen portion of your siding to make sure.
That is why we are showing you some other products for various surfaces along with our top pick.
You have to mask off porous surfaces and keep mineral spirits handy.
Big stretch acrylic latex caulking sealant by sashco.
For all the concrete repairs this one is the best choice of exterior caulk to use.
Although there are different kinds of exterior caulk available in the market for different kinds of surfaces and uses here are the ten best exterior caulk that you can choose from.
Best for use with aluminum metal concrete mortar plastics rubber stone vinyl and exterior wood.
Sashco big stretch acrylic latex high performance caulking sealant.
Polyurethane caulk sticks better and retains its flexibility longer.
Best caulk for fiber cement siding or hardiplank siding lets you have the perfect sealing your surface needs.
Good for gutters siding and concrete.
Trim boards wood windows.
But you are correct that it is very difficult to paint.
It s got good adhesion and expands and contracts.
The downside is that polyurethane caulk is more difficult to apply neatly harder to smooth out and tough to clean up.
You will be able to cover 49 linear feet with a 3 16 inch diameter bead.
Caulking around windows doors eaves and trim edges gives added insurance that leaks will not occur.
So what i would tell you to do is to use a colored caulk to choose the caulk in the color of the siding.
Best uses for butyl rubber caulk a specialty caulk for outdoor use only.
When james hardie siding products butt into wood based materials a 1 8 gap will allow for expansion and contraction of the wood based product.
Fiber cement boards are caulked only when there is no metal flashing behind them.
Some manufacturers do not require the metal flashing therefore we caulk the butt joint to keep the pieces together and also prevent moisture.
What you want to use is a silicone caulk because it s the most permanent one.
The dap self leveling is perfect for caulking horizontal cracks like patios garage floors concrete driveways as well as other concrete surfaces.